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Re: [PATCH v6 2/7] hw/misc/led: Allow connecting from GPIO output
From: |
Richard Henderson |
Subject: |
Re: [PATCH v6 2/7] hw/misc/led: Allow connecting from GPIO output |
Date: |
Sun, 13 Sep 2020 18:46:35 -0700 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 |
On 9/12/20 6:40 AM, Philippe Mathieu-Daudé wrote:
> Some devices expose GPIO lines.
>
> Add a GPIO qdev input to our LED device, so we can
> connect a GPIO output using qdev_connect_gpio_out().
>
> When used with GPIOs, the intensity can only be either
> minium or maximum. This depends of the polarity of the
> GPIO (which can be inverted).
> Declare the GpioPolarity type to model the polarity.
>
> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
> ---
> include/hw/misc/led.h | 10 ++++++++++
> include/hw/qdev-core.h | 16 ++++++++++++++++
> hw/misc/led.c | 17 ++++++++++++++++-
> 3 files changed, 42 insertions(+), 1 deletion(-)
Oops. Failed to have r-b in paste-buffer.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
r~
- [PATCH v6 0/7] hw/misc: Add LED device, Philippe Mathieu-Daudé, 2020/09/12
- [PATCH v6 1/7] hw/misc/led: Add a LED device, Philippe Mathieu-Daudé, 2020/09/12
- [PATCH v6 2/7] hw/misc/led: Allow connecting from GPIO output, Philippe Mathieu-Daudé, 2020/09/12
- [PATCH v6 3/7] hw/misc/led: Emit a trace event when LED intensity has changed, Philippe Mathieu-Daudé, 2020/09/12
- [PATCH v6 4/7] hw/arm/aspeed: Add the 3 front LEDs drived by the PCA9552 #1, Philippe Mathieu-Daudé, 2020/09/12
- [PATCH v6 5/7] hw/misc/mps2-fpgaio: Use the LED device, Philippe Mathieu-Daudé, 2020/09/12
- [PATCH v6 6/7] hw/misc/mps2-scc: Use the LED device, Philippe Mathieu-Daudé, 2020/09/12
- [PATCH v6 7/7] hw/arm/tosa: Replace fprintf() calls by LED devices, Philippe Mathieu-Daudé, 2020/09/12
- Re: [PATCH v6 0/7] hw/misc: Add LED device, no-reply, 2020/09/12